PdfDocument.Notifications.ObserveDidFindMatch 方法

定义

重载

ObserveDidFindMatch(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 DidFindMatchNotification

ObserveDidFindMatch(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 DidFindMatchNotification

ObserveDidFindMatch(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 DidFindMatchNotification

public static Foundation.NSObject ObserveDidFindMatch (EventHandler<Foundation.NSNotificationEventArgs> handler);
static member ObserveDidFindMatch : EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject

参数

handler
EventHandler<NSNotificationEventArgs>

发布通知时调用的方法。

返回

令牌对象,可用于停止接收通知,方法是释放通知或将其传递给 RemoveObservers(IEnumerable<NSObject>)

注解

此方法可用于订阅 DidFindMatchNotification 通知。

// Listen to all notifications posted for any object
var token = PdfDocument.Notifications.ObserveDidFindMatch ((notification) => {
	Console.WriteLine ("Observed DidFindMatchNotification!");
};

// Listen to all notifications posted for a single object
var token = PdfDocument.Notifications.ObserveDidFindMatch (objectToObserve, (notification) => {
	Console.WriteLine ($"Observed DidFindMatchNotification for {nameof (objectToObserve)}!");
};

// Stop listening for notifications
token.Dispose ();

适用于

ObserveDidFindMatch(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 DidFindMatchNotification

public static Foundation.NSObject ObserveDidFindMatch (Foundation.NSObject objectToObserve, EventHandler<Foundation.NSNotificationEventArgs> handler);
static member ObserveDidFindMatch : Foundation.NSObject * EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject

参数

objectToObserve
NSObject

要观察的对象。

handler
EventHandler<NSNotificationEventArgs>

发布通知时调用的方法。

返回

令牌对象,可用于停止接收通知,方法是释放通知或将其传递给 RemoveObservers(IEnumerable<NSObject>)

注解

此方法可用于订阅 DidFindMatchNotification 通知。

// Listen to all notifications posted for any object
var token = PdfDocument.Notifications.ObserveDidFindMatch ((notification) => {
	Console.WriteLine ("Observed DidFindMatchNotification!");
};

// Listen to all notifications posted for a single object
var token = PdfDocument.Notifications.ObserveDidFindMatch (objectToObserve, (notification) => {
	Console.WriteLine ($"Observed DidFindMatchNotification for {nameof (objectToObserve)}!");
};

// Stop listening for notifications
token.Dispose ();

适用于